src/viewextensionsfactory.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2009 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "viewextensionsfactory.h"
  21
  22 #include "dolphincontroller.h"
  23 #include "dolphinfileitemdelegate.h"
  24 #include "dolphinsortfilterproxymodel.h"
  25 #include "dolphinview.h"
  26 #include "dolphinviewautoscroller.h"
  27 #include "selectionmanager.h"
  28 #include "settings/dolphinsettings.h"
  29 #include "tooltips/tooltipmanager.h"
  30
  31 #include "dolphin_generalsettings.h"
  32
  33 #include <kfilepreviewgenerator.h>
  34 #include <QAbstractItemView>
  35
  36 ViewExtensionsFactory::ViewExtensionsFactory(QAbstractItemView* view,
  37                                              DolphinController* controller) :
  38     QObject(view),
  39     m_controller(controller),
  40     m_toolTipManager(0),
  41     m_previewGenerator(0),
  42     m_selectionManager(0),
  43     m_autoScroller(0),
  44     m_fileItemDelegate(0)
  45 {
  46     GeneralSettings* settings = DolphinSettings::instance().generalSettings();
  47
  48     // initialize tooltips
  49     if (settings->showToolTips()) {
  50         DolphinSortFilterProxyModel* proxyModel = static_cast<DolphinSortFilterProxyModel*>(view->model());
  51         m_toolTipManager = new ToolTipManager(view, proxyModel);
  52
  53         connect(controller, SIGNAL(hideToolTip()),
  54                 m_toolTipManager, SLOT(hideTip()));
  55     }
  56
  57     // initialize preview generator
  58     m_previewGenerator = new KFilePreviewGenerator(view);
  59     m_previewGenerator->setPreviewShown(controller->dolphinView()->showPreview());
  60     connect(controller, SIGNAL(zoomLevelChanged(int)),
  61             this, SLOT(slotZoomLevelChanged()));
  62     connect(controller, SIGNAL(cancelPreviews()),
  63             this, SLOT(cancelPreviews()));
  64     connect(controller->dolphinView(), SIGNAL(showPreviewChanged()),
  65             this, SLOT(slotShowPreviewChanged()));
  66
  67     // initialize selection manager
  68     if (settings->showSelectionToggle()) {
  69         m_selectionManager = new SelectionManager(view);
  70         connect(m_selectionManager, SIGNAL(selectionChanged()),
  71                 this, SLOT(requestActivation()));
  72         connect(controller, SIGNAL(urlChanged(const KUrl&)),
  73                 m_selectionManager, SLOT(reset()));
  74     }
  75
  76     // initialize auto scroller
  77     m_autoScroller = new DolphinViewAutoScroller(view);
  78     connect(controller, SIGNAL(currentIndexChanged(QModelIndex, QModelIndex)),
  79             m_autoScroller, SLOT(handleCurrentIndexChanged(QModelIndex, QModelIndex)));
  80
  81     // initialize file item delegate
  82     m_fileItemDelegate = new DolphinFileItemDelegate(view);
  83     m_fileItemDelegate->setShowToolTipWhenElided(false);
  84     view->setItemDelegate(m_fileItemDelegate);
  85
  86     view->viewport()->installEventFilter(this);
  87 }
  88
  89 ViewExtensionsFactory::~ViewExtensionsFactory()
  90 {
  91 }
  92
  93 void ViewExtensionsFactory::handleCurrentIndexChange(const QModelIndex& current, const QModelIndex& previous)
  94 {
  95     m_autoScroller->handleCurrentIndexChange(current, previous);
  96 }
  97
  98 DolphinFileItemDelegate* ViewExtensionsFactory::fileItemDelegate() const
  99 {
 100     return m_fileItemDelegate;
 101 }
 102
 103 bool ViewExtensionsFactory::eventFilter(QObject* watched, QEvent* event)
 104 {
 105     Q_UNUSED(watched);
 106     if ((event->type() == QEvent::Wheel) && (m_selectionManager != 0)) {
 107         m_selectionManager->reset();
 108     }
 109     return false;
 110 }
 111
 112 void ViewExtensionsFactory::slotZoomLevelChanged()
 113 {
 114     m_previewGenerator->updateIcons();
 115     if (m_selectionManager != 0) {
 116         m_selectionManager->reset();
 117     }
 118 }
 119
 120 void ViewExtensionsFactory::cancelPreviews()
 121 {
 122     m_previewGenerator->cancelPreviews();
 123 }
 124
 125 void ViewExtensionsFactory::slotShowPreviewChanged()
 126 {
 127     const bool show = m_controller->dolphinView()->showPreview();
 128     m_previewGenerator->setPreviewShown(show);
 129 }
 130
 131 void ViewExtensionsFactory::requestActivation()
 132 {
 133     m_controller->requestActivation();
 134 }
 135
 136 #include "viewextensionsfactory.moc"
 137